: Download the official firmware packages directly from the FNIRSI Software Download Page . How to Update DSO-TC2 Firmware
: You can only update one component at a time . If you need to update both the oscilloscope and tester, you must repeat the full process for each file. Complete the Upgrade : dsotc2 firmware upd
With the device powered , connect it to your PC via the USB cable. : Download the official firmware packages directly from
: If the "CH BOOT" drive does not show up, try using a different USB-A to USB-C cable or a different USB port on your computer. Complete the Upgrade : With the device powered
: Use a high-quality USB Type-C data cable. Note that standard USB-C to USB-C cables often fail for firmware transfers; a USB-A to USB-C cable is highly recommended.
Once the file transfer finishes, the device screen should display "Update completed".